Improvement in sash-balance and lock



WILLIAM H. Don, or osHKosH, WISCONSIN.

Letters Patent No. 102,379, (lated April 26, 1870.

IMPROVEMENT IN SASH-BALANCE'AND LOCK.

The Schedule referred to in these Letters Patent and making part of thesame To all whom it may concern Be it known that I, NVILLIAM H. DOE, ofthe city of Oshkosh, in the county of Winnebago and State of Wisconsin,have invented' a new and Improved method of Balancing and LockingWindow-Sash; and I do hereby certify that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

To enable others skilled in the art to construct and use the invention,I will proceed to describe it.

The nature of my invention relates to the arrangement of a combinationof vertical sheaves with a horizontal roller and a lock-bolt, all upon asingle plate, for convenient insertion into the middle of thejambcasing, the sheaves and roller being the medium by which the upper'and lower sash balance each other, by means ofthe cord passing overthem, andthe lockholt serving to lock the sash in any position.

Figure 1 is a front elevation of a window with the apparatus dotted inplace.

Figure 2 is a front View ofthe apparatus, with the falce-casing removed,and the sash fragmentary, showing the groove with the cord and stirrup.

Figure 3 is a side view of the apparatus with the jainb removed, showingthe edge of the sash.

Figure 4 is a rear view of the apparatus with the outside face-casingremoved, and the sash fragmentary.'

Figure 5 is a` view of the under. side of the apparatus, showing thelock turned in'.

A is the vertical sheave adjacent to the lower sash.

B is the roller.

C is the vertical sheave adjacent to the upper sash.

D is the point at which the cord is fastened to theV upper sash.

E is the stirrup, and

F the nut by. which the tension of the cord is adjusted.

G is a stop, fixed to the sash, against Lich the nut F operates. f

H H are boxes against which the journals of the sheaves and roller work.

l (fig. 2) is the socket in the crank-wheel into which the working rod Jof the lock is fitted.

K K are studs by which the plates L and )I are connected. l

N is the `face-plate set iiush with the jamb O.

J is the working rod of the lock, provided with a shoulder, P, which, incombination with the plate Q, keeps the rod in place.

1t is the crank-wheel, with crank-pin S working in Y a slot in thelock-bolt T.

U is the lower sash.

V is the upper sash.

W is the face-casing. Having thus described my invention,

WhatI claim, and desire to secure by Letters 'Patent, is-

The sheaves A and C and the roller B, arranged as described, and thelock-bolt T, operated as shown, all arranged on one plate'i'orconvenient insertion at one operation.

WILLIAM H. DOE.

Witnesses G. PALMER, WM. P. TAYLoR.

